Chair 23 – Mammoth Mountain, CA

Loaded line with lots of sag.
Chair 23 is famous for the steep terrain it accesses and snowshed at the top.
Doppelmayr recently replaced tower 2 as of 2017.
Bottom station with lots of room to raise for snow load.
Counterweight is far, far away.
Loading area.
Another Doppelmayr tower mod.
Arriving up top.
It’s cool!
Return bullwheel inside.
Large doors can close to protect the lift during storms.
Steep lift line.
Middle part of the line.
Combo assemblies.
View up the line.
Side view of the drive-tension terminal.

18 thoughts on “Chair 23 – Mammoth Mountain, CA

  1. AM May 23, 2018 / 5:52 pm

    I love the snowshed part, it’s pretty incredible when you go in it. I was wondering if they could upgrade it to a DTQ and still keep the snowshed since this should be a DTQ sometime around now.


    • Michael May 23, 2018 / 10:40 pm

      Not likely. Yan Triples typically had a 13 foot line gauge and bullwheel- too narrow for a detach quad at a typical 15 foot. And you’d really need to remove the shed to build the new terminal.


    • Thomas Jett May 24, 2018 / 12:12 am

      There’s no need for an upgrade to 23. As it is, it has a 5-6 minute ride time, and is intended to serve only expert terrain. Given that Mammoth is the most-skied areas in North America, all a detachable will do is encourage people to ride it that have no business being at the top of 40º+ runs.

      Liked by 4 people

      • Mike B May 24, 2018 / 12:27 pm



      • Car April 12, 2021 / 8:54 pm

        No. Attendance at Mammoth Mt WAY down past 10 years. 2-3 bad snow years 2018-21. Idiotic Covid closures. $208 tickets. $4.50 SD gas. No flights from LAX or SD. Chair 23 is a POS. Mammoth is huge, but so stale. 7, 8, 9, 12, 13, 14 22, 23, 25 are a total joke! These chairs are 30-50 years old.


        • Mike B April 13, 2021 / 10:12 am

          Wow. Someone has a lot of anger at a lot of people/organizations.

          Yeah – let’s go and replace all the old chairs with new, WAY more expensive chairs so we can drive ticket prices even higher!

          Liked by 1 person

  2. christopher albence September 4, 2018 / 1:49 am

    i concur Tomas, please don’t make ever make Chair 23 a detachable quad.


  3. Teddy's Lift World May 10, 2019 / 4:58 am

    I’m surprised this hasn’t been converted to hydraulic tensioning like a lot of other Yans out there. I feel like if they would take the time to remove chairs from the line and the haul rope to upgrade the tensioning system too.


    • vons3 January 27, 2023 / 11:28 am

      All the tension loads are supported by the mast out by the counterweight well away from the terminal, so the terminal’s height adjustable frame and portal legs are not designed to support this type of load making it difficult and expensive to change from a counterweight.
      There is nothing wrong with a counterweight they are fairly inexpensive and low maintenance solution


  4. Seldom Seen Smith October 4, 2019 / 3:31 pm

    No detachable ever please.

    Liked by 1 person

  5. Raj Thorp March 1, 2020 / 10:01 am

    This lift is crazy! The snowshed is really cool, and the drive station is massive. That drive is the biggest one I’ve ever seen on a fixed grip


  6. Kaden K March 1, 2020 / 9:51 pm

    How does height adjustment work and not screw up the tensioning?


    • V12Tommy January 27, 2023 / 10:11 am

      As far away as that counterweight is, I doubt the angle on the cable would even change.


    • pbropetech January 27, 2023 / 10:56 am

      The tension isn’t affected by the height of the terminal.


  7. Kirk March 2, 2020 / 7:59 am

    As the Drive terminal is raised up the the Drive carriage moves back. The counterweight moves to to keep the tension the same. (Basically the same action as the haulrope stretching). The hold down assemblies sheave load decreases slightly as the terminal goes up.


  8. ski man July 26, 2021 / 4:06 pm

    yes those lifts need to be remove because one time I fell off of chair 12


  9. ski man November 20, 2021 / 8:13 pm


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